labelled-logger

Features:

• colored log labels
• log levels
• nicely displayed
• printf-like message formatting
• configurable and customizable

Table of Contents

• Usage

Usage

const LoggerFactory = require('labelled-logger');
const colors = require('labelled-logger').colors;

const labelsData = [
  {
    label: 'prepare',
    color: colors.GREEN
  },
  {
    label: 'parse',
    color: colors.PURPLE
  },
  {
    label: 'extract', 
    color: colors.BLUE
  },
  {
    label: 'compute',
    color: colors.RED
  },
  {
    label: 'create',
    color: colors.YELLOW
  }
];

const levelsData = [
  { value: 0 }, { value: 1 }, { value: 2 }, { value: 3 }
];

const logger = LoggerFactory.createLogger(labelsData, levelsData);
logger.setLevel(1); // everything below or equal level 1 will be printed
logger.setExpandObjects(true); // objects and lists will be printed entirely
logger.disable(); // don't log anything
logger.enable('create', 'compute'); // log only create and compute labels
logger.enable(); // log all labels


// log messages in your code
// logger.log(<level>, <label>, <message>, ...<variables>)

logger.log(0, 'prepare', 'reading file');
/* ... */
logger.log(1, 'prepare', '%d lines read', lines);
/* ... */
logger.log(1, 'parse', 'parsed file, parsed returned %s', ret);